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Public domain
All my contributions to OpenStreetMap are released into the public domain. This applies worldwide.
In case this is not legally possible, I grant anyone the right to use my contributions for any purpose, without any conditions, unless such conditions are required by law.
OSM Logo This user submits data to OpenStreetMap under the name
Mariusz Adamski.
Bike Marian
is a bicyclist.
JOSM Marian submits data to OpenStreetMap using JOSM.
Gps-304419.svg Marian uses a Neo Freerunner and might be willing to answer questions on it from OSM users.

I'm mostly contributing to map of Wroclaw. I've also created a stub of Namysłów map.


  • Openmoko Neo FreeRunner with u-blox ATR0635 (ANTARIS 4) AGPS chip with external antenna
  • Nokia N900 with Texas Instruments GPS5030 (Navilink 5) AGPS chip

I'm using my Nokia mainly for geotagged photos and auxiliary traces, since FreeRunner's GPS seems to be more accurate (it may be thanks to external antenna). N900 also reports ridiculously large HDOP; GPX traces can be fixed with a one-liner however (reduces it by one order of magnitude):

sed -i -e 's#<hdop>\([0-9]*\)\([0-9]\)\.\([0-9]*\)</hdop>#<hdop>\1\.\2\3</hdop>#g' <file>

Useful links

WikiProject Poland

WikiProject Wrocław

Uwagi o tworzeniu mapy (po Polsku / in Polish language)

Klasyfikacja i oznaczanie dróg w Polsce - propozycja (po Polsku / in Polish language)

Map Features

Editing Standards and Conventions

Python script for converting UMP *.txt files into OSM XML format (use with caution) (deprecated, use this)